/*
 * The contents of this file are subject to the terms 
 * of the Common Development and Distribution License 
 * (the License).  You may not use this file except in
 * compliance with the License.
 * 
 * You can obtain a copy of the license at 
 * https://glassfish.dev.java.net/public/CDDLv1.0.html or
 * glassfish/bootstrap/legal/CDDLv1.0.txt.
 * See the License for the specific language governing 
 * permissions and limitations under the License.
 * 
 * When distributing Covered Code, include this CDDL 
 * Header Notice in each file and include the License file 
 * at glassfish/bootstrap/legal/CDDLv1.0.txt.  
 * If applicable, add the following below the CDDL Header, 
 * with the fields enclosed by brackets [] replaced by
 * you own identifying information: 
 * "Portions Copyrighted [year] [name of copyright owner]"
 * 
 * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
 */

package com.sun.enterprise.deployment.node.runtime;

import org.xml.sax.Attributes;
import org.w3c.dom.Node;
import org.w3c.dom.Element;

import com.sun.enterprise.deployment.node.DeploymentDescriptorNode;
import com.sun.enterprise.deployment.node.XMLElement;
import com.sun.enterprise.deployment.xml.RuntimeTagNames;
import com.sun.enterprise.deployment.Group;


/**
 * This node handles the group definition in the runtime DDs
 *
 * @author Jerome Dochez
 * @version 
 */
public class GroupNode extends DeploymentDescriptorNode {

    Group group=null;
        
   /**
    * @return the descriptor instance to associate with this XMLNode
    */    
    public Object getDescriptor() {
        return group;
    }
    
    /**
     * SAX Parser API implementation, we don't really care for now.
     */
    public void startElement(XMLElement element, Attributes attributes) {

        if (RuntimeTagNames.GROUP.equals(element.getQName())) {
            for (int i=0; i<attributes.getLength();i++) {
                if (RuntimeTagNames.NAME.equals(attributes.getQName(i))) {
                    group = new Group(attributes.getValue(i));
                }
            }
        }
    }
    
   /**
     * write the descriptor class to a DOM tree and return it
     *
     * @param parent node for the DOM tree
     * @param node name 
     * @param the descriptor to write
     * @return the DOM tree top node
     */    
    public Node writeDescriptor(Node parent, String nodeName, Group descriptor) {      
        Element principal = appendChild(parent, nodeName);     
	setAttribute(principal, RuntimeTagNames.NAME, descriptor.getName());
        return principal;
        
    }    
}
